I'm sure you've met him, or her. That person who says he'll finish the project tomorrow, but tomorrow never comes. Or the person who promises to call as soon as she gets home, but you never hear from her.
The impetus for change is to make nutritional information easier to understand, so that consumers can pick up products on the grocery shelf and easily determine if it's a good choice for themselves and their family. However, nutrition labeling is tricky for a variety of reasons.